🇩🇪Germany @crifi

This happens if the installation of your new Drupal 9/10 site is not minimal and the field field_image already exists. So you should delete the field before execution of the d7_field Migration:

drush field:delete node article --field-name=field_image --all-bundles
drush migrate:import --execute-dependencies --group=default d7_field,d7_field_instance